PHYSICS OBJECTIVE Q&A FOR UPSC (NDA/NA) EXAM ------------------------------------------------------------------------------------------------------ FOR PREVIOUS SET, CLICK HERE 👈 ------------------------------------------------------------------------------------------------------ UPSC NDA/NA PHYSICS MCQ Q.1 A pendulum clock is set to give correct time at the sea level. The clock is moved to a hill station at an altitude h above sea level. In order to keep correct time on the hill station which one of the following adjustments is required ? (a) the length of the pendulum has to be reduced (b) the length of the pendulum has to be increased (c) the mass of the pendulum has to be increased (d) the mass of the pendulum has to be reduced